Faceplate for wood lathes



May 10, 1949. BRAUN 2,469,630

FACE PLATE FOR WOOD LATHES I Filed Aug. 16, 1944 2 Sheets-Sheet 1 z'don B u w; WW

May 10, 1949. I G. BRAUN 0 FACE PLATE FOR WOOD LATHES Filed Aug. 16, 1944 2 shee is-sheet 2 $2142 on Brazen Patented May 10, 1949 S PATENT OF-1F ICE ,a face plateof new and improved-design and having new and improved means-for: securing the work to the face plate whereby the performance of difierentkin'ds of operations onwork of varions/sizes and shapes is facilitated and the. safety ofthe Operator in performing-such operations is promoted.

-.Still other objects and advantages of theinvention will become more clearlyrapparentwfrom the; following detailed description thereof taken in connection with the accompanyingdrawings inwhich:

=Figure leis a front elevational view ofia face plate-according to a preferredembodimentzofithe invention,

Figure 2 is'a rear elevationatview of the face platez shown in Figure 1,

Figure3 is a sectional view taken along the line 3+3 -of1 Figure 1,

:FigureA is a fragmentaryisectionalayiew of the face plate as viewed along the line 4-4 of Figure '1,

Figure 5 is a front elevational view of the face plate illustrating the manner of securing a particular piece of work thereto,

Figure 6 is a fragmentary sectional view taken along the line 6-6 of Figure 5, and

Figure '7 is a sectional view taken through the center of an alternate form of the face plate.

Referring now to the drawings for a, more complete understanding of the invention, the numeral It generally designates a face plate according to a preferred embodiment thereof in which ll designates the face plate proper. The face plate ll may take the form of a casting, if desired, but preferably is in the form of a steel plate of cylindrical configuration having an annular flange l2 and an internally threaded hub portion I3 by means of which the face plate is adapted to be fastened to the lathe drive shaft, it being understood that any other conventional fastening means such, for example, as set screws or the Morse taper shank may be employed if desired.

The hub portion I3 also is internally threaded concentrically of the face plate as at M to receive a tapered center point l5, having a squared portion it to receive a wrench or suitable tool, or the hub at I4 selectively may be used to receive a bolt l 7 which carries an adjustable nut or burr l8 by means of which a piece of work such, for example, as a lamp base, indicated at [9 in Figures 5 and 6, may be secured to the face plate for n2 re-polishing,re touching oriotherxminor oper- :ationithereomwithout damagingieitherxtheipolish :orl' finisht previouslysapplied to the. work.

kfl heifaceiplate' l lisx.providedl with arplurality of i holes which 1 are cequally spaced 5 about ca :common: circle-and :may the bored-cor: cast within the faceplate, as thezcase maybe. :The'. holes- 2h 'are'a'dapted to receivessuitable screws or theilike for fastening the work'to' the faceplate, an off-set tapped hole i 2 i being provided for receiving :a punch or a screw, thereby to make a ma'rk in the work whereby a particular centering thereof on lithe: face plate may be restablished and restored in tthe 1 event that .the =1 work is removed tempo- -rarily.

iThe-tfa'cetplate alsozis provided with-a plurality io'f'rradially disposed slots. 22lfor ireceivin alplu- :ralityzof rectangularly shapednhooks 23 :respectively. :Each ofthooks23'is rounded;atr2l' toremove sharp corners and is reducedzin. cross-section at 25 to be received-slidably,"but non-rotatively, in'slots-22 and to form a shoulder thereon as at 26 whereby each hook is rigidly supported in a radially adjusted position on the face plate when a nut or burr 21, carried on the threaded end portion of each hook, is drawn up tight.

Each of the hooks is provided with a radially extending tapered hole or aperture 28 for receiving a double-tapered pin 29, the small opening in tapered holes 28 being on the rounded side of hooks 23 whereby the pins 29 are directed toward the axis of the face plate when the hooks are properly assembled on the face plate, substantially as shown in Figures 1 and 3.

In clamping a piece of work to the face plate by means of hooks 23, the work, which may be rough, unfinished wood of irregular or unsymmetrical shape, is first centered on point l5 and the hooks 23 thereafter are adjusted along the slots 22 and engaged selectively with the work in a position therewith affording the greatest advantage with respect to clamping the work to the face plate. The pins 29 are then driven well into the work by means of a hammer, for example, the blows preferably directed on the pins whereby the pins are riveted to the hooks, thus obviating the need for any other fastening means therebetween. This arrangement for securing the pins to the hooks obviously provides an advantage in that the pins readily may be replaced when the points thereof wear down and the pins are wedged into the hooks whereby all lost motion between the work and face plate is taken up as the burrs 21 are tightened and the hooks become securely fixed on the face plate thereby insuring that the work will not fly off the face plate notwithstanding that the operator may become careless or reckless in performing operations thereon. The pins 29 also tend to urge the work toward the face plate as the pins are driven into the work by reason of the tapered points thereon. It will be understood, of course, that when desired, screws or bolts carried by holes 20 may be employed in addition to the hooks in securing the work to the face plate.

In Figure 7 a simplified form of face plate is shown in that the face plate proper, designated 30, is not provided with an annular flange, the face plate otherwise being the same as face plate H. The flange I2 is preferred in that it generally strengthens the face plate and provides a wider seat for a ring or band shaped safety guard 3| which is secured to either of the face plates l I or 30 by means of countersunk machine screws 32 carried thereby.

The safety guard 3| preferably is arranged to project beyond all moving parts on either side of the face plate thereby to prevent injury to the operator as a result of moving the cutting tools too close to such parts. Moreover, it is well known that splinters in breaking from wood being worked invariably tear back to the face plate and then fly toward the operator. When a safety guard 3| is employed, however, the guard breaks the force of the flying splinter, thus obviating the danger to the operator.

While the invention has been described in particularity with respect to an example thereof which gives satisfactory results, it will be apparent to those skilled in the art to which the invention appertains that several additions, deletions, variations, and modifications thereof will suggest themselves Without departing from the spirit and scope of the invention as defined by the appended claim.

I claim as my invention In a lathe, a face plate, having a plurality of radially'disposed slots, said plate being provided with a hub construction having means for attachment to a drive shaft, said hub projecting in one direction, a center point on the plate projecting in the opposite direction from the hub construction, a. plurality of slide fingers, each of said fingers having one end slidably disposed in a corresponding slot, said ends of the fingers being provided with threaded extensions extending through the slots and beyond the face plate at its side opposite from the major portion of the fingers, said fingers being provided with shoulders thereon for engaging one side of the plate, nuts on the threaded extensions adapted to be fed against the opposite side of the plate to secure the fingers in fixed adjusted position with respect to the slots, said fingers being adjustable in the slots by loosening and tightening of said nuts.

GIDEON BRAUN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 298,529 Weisse May 13, 1884 321,762 Smith et al July 7, 1885 375,771 Rivett Jan. 3, 1888 427,037 Bright May 6, 1890 1,124,172 Reynolds Jan. 5, 1915 1,232,325 Keichel July 3, 1917 1,361,120 Weatherby Dec. 7, 1920 1,382,949 Bloomfield June 28, 1921 1,399,969 Kurkjian Dec. 13, 1921 FOREIGN PATENTS Number Country Date 5,441 Great Britain Apr. 20, 1886 182,225 Germany Mar. 12, 1907 55,992 Switzerland Mar. 30, 1911 

